Physical description
Metal Box, 5-sided, various sighting and other dials and attachments (including battery compartment)
Inscriptions & markings
A. M.
BUBBLE SEXTANT
MARK IX
6B/151
No.15798/40
BRIT. PATS.
480112 490621
AND PENDING
References
- WW II RAF Cased British MK IX Aircraft Bubble Sextant Detailed description of device and case (on 'military items for sale' website - item may be removed if sold?)